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Sliva [168]
3 years ago
12

Write the first four terms of a geometric sequence with a first term of 81 and a ratio of 1/3

Mathematics
2 answers:
zaharov [31]3 years ago
6 0

Answer:

Huh?

Step-by-step explanation:

const2013 [10]3 years ago
3 0

Answer:

Step-by-step explanation:

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If a procedure meets all of the conditions of a binomial distribution except the number of trials is not​ fixed, then the geomet
morpeh [17]

Answer:

The probability is 0.0428

Step-by-step explanation:

First, let's remember that the binomial distribution is given by the formula:

P(X=k) =\left[\begin{array}{ccc}n\\k\end{array}\right] p^{k}(1-p)^{n-k} where k is the number of successes in n trials and p is the probability of success.

However, the problem tells us that when there isn't a number of trials fixed, we can use the geometric distribution and the formula for getting the first success on the xth trial becomes:

P(X=x) = p(1-p)^{x-1}\\

The problem asks us to find the probability of the first success on the 4th trial (given that the first subject to be a universal blood donor will be the fourth person selected)

Using this formula with the parameters given, we have:

p = 0.05

x = 4

Substituting these parameters in the formula and solving it, we get:

P(X=4) = 0.05(1-0.05)^{4-1}\\P(X=4) = 0.05 (0.95)^{3}\\P(X=4) = 0.05(.8573)\\P(X=4) = 0.0428

Therefore, the probability that the first subject to be a universal blood donor is the fourth person selected is 0.0428 or 4.28%

7 0
3 years ago
Sara works for a hair salon and receives tips from her customers. The weekly tips
Monica [59]

Answer:

mean: 107.86

median: 100

range: 140

mode: 100

Step-by-step explanation:

3 0
2 years ago
A kilometer is 3,280.8 feet. How many feet long is a meter?
love history [14]
There is 3.28084 feet in a meter
7 0
3 years ago
A milk container's capacity is one gallon. How many cups would be equal?
Butoxors [25]
<span>there are 16 cups in one gallon</span>
5 0
3 years ago
Read 2 more answers
The least common multiple of two numbers is 60, and one of the numbers is seven less than the other numbers. What are the number
anastassius [24]
Start by writing all of the pairs of numbers that go into 60

1 60
2 30
3 20
4 15
5 12
6 10


Then, look for the pair that has a difference of seven between the two numbers.

Your numbers are 5 and 12
7 0
2 years ago
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